An electron is moving with constant velocity along x -axis. If a uniform electric field is applied along y -axis, then its path in the x−y plane will be :
a straight line
a circle
a parabola
an ellipse
A
a circle
B
a straight line
C
a parabola
D
an ellipse
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Solution
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If a uniform electric field is applied in y-direction , then a force acts in the −y direction for the moving electron. Thus the case is thus of a projectile and the path is a parabola.
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